July 4, 2008 09:09pm pdt

1. dragon-it 69,287
2. Shift-3 52,568
3. devil_hi... 49,120
4. SteveGTR 45,415
5. oBdA 40,995
6. sirbounty 33,673
7. farhankazi 27,940
8. matrixnz 27,591
9. sungenwang 25,640
10. canali 24,125
11. forrestoff 22,860
12. RQuadling 21,975
13. knightEk... 20,840
14. leew 18,895
15. garycase 15,793

1. SteveGTR 1,287,758
2. sirbounty 374,018
3. dragon-it 337,476
4. leew 310,147
5. oBdA 243,181
6. pbarrette 118,024
7. GuruGary 112,331
8. For-Soft 110,898
9. K_2K 104,084
10. Shift-3 84,168
11. DrWarezz 73,485
12. rin1010 67,797
13. dbrunton 62,356
14. brianadkins 60,598
15. farhankazi 58,344

05.16.2008 at 12:58AM PDT, ID: 23407594

	[x] Attachment Details

[x]

The Solution Rating System

With so many solutions, how can you tell which solutions are most likely to help you and which ones are not? To provide you with a tool to use, we rate our solutions based on various elements that most accurately determine if a solution is a quality solution. To explain what factors affect the solution rating, here are the elements we take into consideration when formulating our solution rating.

The Grade of the Solution
The Zone Rank of the Expert Providing the Solution
The Number of Author and Expert Comments
The Number of Experts Contributing
The Feedback of the Community

Your Input Matters
Because of the way the system is set up, the most important variable in this equation is you. As a member of Experts Exchange, you are able to cast your vote on the quality of the solutions in regard to how complete, accurate, helpful and easy to understand each solution is. When you provide your feedback, each rating is adjusted accordingly. So, if you see a solution that has a poor rating that you think is a good solution, let us know by rating it. As you do, the rating will be adjusted and will become more accurate for other members of our site.

If you have any suggestions that you would like to make for our rating system, please ask a question in the Suggestions Zone of Community Support.

Thank you!

9.6

Batch File - Read Line By Line, Manipulate, and Delete Files

Zones:

MS DOS, Windows 2000 Operating System

Tags:

MS DOS

Hi,

I'm trying to write a batch file to read a textfile line-by-line and after manipulating with each line (substring, concat etc), delete some files from another directory.

Content of my textfile will be as such:
D:\myfiles\src\shared\file1.java
D:\myfiles\src\function\file1.java
D:\myfiles\src\function\file2.java

The batch file should get each line, based on the path, and delete some files in another directory.

For example
---------------
If the batch file now reads the 1st line "D:\myfiles\src\shared\file1.java", it should delete the files that is in "D:\myfiles\classes\shared" and matches "file1*.class"

If the batch file now reads the 2nd line "D:\myfiles\src\function\file1.java", it should delete the files that is in "D:\myfiles\classes\function" and matches "file1*.class"

Any help would be appreciated. Thanks so much!!

Start your free trial to view this solution

Question Stats

Zone: OS

Question Asked By: Cantona

Solution Provided By: oBdA

Participating Experts: 1

Solution Grade: A

Translate:

Loading Advertisement...

Microsoft

Internet Protocols
Applications

Development
OS

Hardware
Windows Security

Apple

Operating Systems
Hardware

Programming
Networking

Software

Internet

Search Engines
File Sharing
WebTrends / Stats
Spy / Ad Blockers

Web Browsers
New Net Users
Web Development
Chat / IM

Anti Spam
Web Servers
Anti-Virus
Email Clients

Gamers

Tips
Online / MMORPG
Puzzle
Emulators

Action / Adventure
Role Playing
Consoles
Game Programming

Strategy
Sports
Misc
Computer Games

Digital Living

Hardware
New Net Users
New Users

Software
Digital Music
Gaming World

Home Security
Apple
Networking Hardware

Virus & Spyware

Vulnerabilities
IDS
Encryption
Anti-Virus

Operating Systems Security
Software Firewalls
WebApplications
Cell Phones

Operating Systems
Internet
Hardware Firewalls

Hardware

Handhelds / PDAs
Displays / Monitors
Components
Networking Hardware

Peripherals
Laptops/Notebooks
Storage
Servers

Desktops
New Users
Misc
Apple

Software

System Utilities
Industry Specific
Network Management
Photos / Graphics
Page Layout
VMWare
Misc
Web Development

OS
CYGWIN
Voice Recognition
Message Queue
Quality Assurance
Security
Firewalls
MultiMedia Applications

Development
Database
Office / Productivity
Business Management
OS/2 Apps
Server Software
Internet / Email

ITPro

OS
Storage
Encryption
Operating Systems Security
Apple Hardware
Laptops & Notebooks
Servers
Networking Hardware
Peripherals

Devices
Displays / Monitors
WebTrends / Stats
Search Engines
Firewalls
WebApplications
IDS
Vulnerabilities
Email Clients

File Sharing
Spy / Ad Blockers
Web Browsers
Web Servers
Networking
Anti-Virus
Chat / IM
Anti Spam

Developer

Web Servers
Web Browsers
Game Programming
Dev Tools
Industry Specific
Office / Productivity

Database
CYGWIN
Web Development
Search Engines
File Sharing
WebTrends / Stats

Programming
Content Management
Application Servers
Protocols

Storage

Removable Backup Media
Storage Technology
Servers

Grid
Remote Access
Backup / Restore

Misc
Hard Drives

Miscellaneous
Security
Development
Linux
VMWare

MainFrame OS
Unix
Apple
OS / 2
AS / 400

BeOS
Microsoft
VMS / OpenVMS

Database

Oracle
Miscellaneous
MySQL
Software
Sybase
Contact Management
PostgreSQL
Data Manipulation
Clarion
InterSystems Cache

Siebel
MUMPS
OLAP
SQLBase
SAS
GIS & GPS
4GL
Berkeley DB
DB2
Informix

Interbase / Firebird
FoxPro
Reporting
LDAP
Filemaker Pro
MS SQL Server
dBase
MS Access

Security

Misc
Web Browsers
Software Firewalls
Operating Systems Security
File Sharing

Spy / Ad Blockers
Vulnerabilities
WebApplications
IDS
Anti-Virus

Encryption
Anti Spam
Email Clients
VPN
Chat / IM

Programming

Editors IDEs
Installation
Handhelds / PDAs
Multimedia Programming
System / Kernel

Algorithms
Game
Signal Processing
Project Management
Open Source

Database
Misc
Languages
Processor Platforms
Theory

Web Development

Scripting
Blogs
Web Servers
Software
Search Engines
Web Graphics
Images

Internet Marketing
Images and Photos
Components
Document Imaging
Web Languages/Standards
Illustration
WebApplications

Fonts
WebTrends / Stats
Authoring
Digital Camera Software
Miscellaneous

Networking

Protocols
Apple Networking
Network Management
Message Queue
Application Servers
Content Management
File Servers
Email Servers
Misc
Java Editors & IDEs

Wireless
Networking Hardware
Backup / Restore
System Utilities
ISPs & Hosting
Web Servers
Storage Technology
Removable Backup Media
Servers
Broadband

Grid
OS / 2
Novell Netware
Unix Networking
Windows Networking
Security
Telecommunications
Operating Systems
Linux Networking

Other

Community Advisor
Lounge
Community Support
New Net Users

Philosophy / Religion
Math / Science
Miscellaneous
URLs

Expert Lounge
Politics
Puzzles / Riddles

Community Support

Suggestions
New to EE
New Topics
Community Advisor

CleanUp
Announcements
General

Feedback
Input
EE Bugs

05.16.2008 at 01:39AM PDT, ID: 21580903

Rank: Genius

oBdA:

Try this; this will for each line extract the file name and the last folder before the file name, then based on these names, create the target path to delete.
The script is currently in test mode; it will only display the "del" command it would otherwise run. Remove the capitalized ECHO in front of the del command to run it for real.
In addition, "/p" (prompt) is specified for the del command, which should prompt you before it deletes a file. Once you're sure the file is actually only deleting files you want to get rid of, you can replace the /p by /q (quiet) to run it fully automatically.

                       
         
           
           
             @echo off
setlocal
set DeleteRoot=D:\MyFiles\classes
set DeleteExt=class
for /f "tokens=*" %%a in ('type test.txt') do call :process "%%~a"
goto :eof
 
:process
set DeleteFolder=%~p1
for %%a in ("%DeleteFolder:~0,-1%") do set DeleteFolder=%%~nxa
set DeleteFile=%DeleteRoot%\%DeleteFolder%\%~n1*.%DeleteExt%
echo Deleting "%DeleteFile%" ...
ECHO del /p "%DeleteFile%"
goto :eof
           
         

Open in New Window

05.16.2008 at 01:41AM PDT, ID: 21580918

Rank: Genius

oBdA:

Oh, and you obviously need to replace "test.txt" with the input file; you can use the full path, and use quotes if the path contains spaces:
for /f "tokens=*" %%a in ('type "T:\he\path with spaces\test.txt"') do call :process "%%~a"

05.16.2008 at 08:14PM PDT, ID: 21587849

Cantona:

Hi oBdA,

Thanks so much for your solution! It works like a gem :)

Still one more thing to clarify with you though.

After deleting the necessary files, I still need to do additional processing (e.g. I need to recompile my java codes to generate the respective class files). Based on your provided solution, I've removed the "goto:eof" line so that I can proceed with further processing. However, those further processing will be executed everytime a line is read from the textfile.

Can you provide me with another piece of your gem with the above-mentioned in mind? hehe.

Thanks so so much.

05.17.2008 at 04:44AM PDT, ID: 21588813

Rank: Genius

oBdA:

The part after :process is essentially a subroutine that gets called for each line in the text file.
Further general processing needs to be done after the text file is read, but before the first "goto :eof".
Here's the rearranged version which should make things clearer:

                       
         
           
             1:
2:
3:
4:
5:
6:
7:
8:
9:
10:
11:
12:
13:
14:
15:
16:
17:
18:
19:

           
           
             @echo off
setlocal
set DeleteRoot=D:\MyFiles\classes
set DeleteExt=class
for /f "tokens=*" %%a in ('type test.txt') do call :process "%%~a"
REM Further general code goes here ...
 
 
REM ============================================================
REM ===== General processing ends here, subroutines begin! =====
REM ============================================================
goto :eof
:process
set DeleteFolder=%~p1
for %%a in ("%DeleteFolder:~0,-1%") do set DeleteFolder=%%~nxa
set DeleteFile=%DeleteRoot%\%DeleteFolder%\%~n1*.%DeleteExt%
echo Deleting "%DeleteFile%" ...
ECHO del /p "%DeleteFile%"
goto :eof
           
         

Open in New Window

Accepted Solution

05.18.2008 at 08:22AM PDT, ID: 21592982

Cantona:

Hi oBdA,

Sorry I think I'm not clear enough. I need further processing only after the .class files are deleted...ie the following sequence:
1. Read from the textfile (already provided by your script)
2. Delete the necessary .class files (already provided by your script)
3. After the files are deleted, I'll need to do some re-compilation to regenerate the new .class files. (not done yet)

Thanks so much for your help so far. Really appreciate it.

05.18.2008 at 08:35AM PDT, ID: 21593026

Rank: Genius

oBdA:

Yes, and after line 5, the text file has been read, and the .class files have been deleted.
Line 5 is actually a loop that calls the function "process" for each line that's in the text file.
You can add your compilation code after line 5. The "goto :eof" currently in line 12 will make sure that the main program doesn't fall into "process" function when it's done.

05.19.2008 at 07:34PM PDT, ID: 21603230

Cantona:

Hi oBdA,

Thanks so so much for your clarification! It works really well! *thumbs up*

Thanks once again for everything =D

Regards.

20080236-EE-VQP-29 / EE_QW_2_20070628